4. The title goes back and forth
After having previously beaten Brock Lesnar in UFC, Cain Velasquez is an instantly credible challenger for Brock Lesnar. Not unlike Lesnar, his real fight credentials make him immediately believable as a dangerous man and even a champion. Just the same, professional wrestling is a unique platform. While squashes that invoke MMA have their place, a long term champion also needs to be able to hold his own in putting on longer one on one matches.
Velasquez could take the WWE Championship off of Lesnar, but if he does so, we have to suspect that Lesnar will take the title back form him. WWE may well use the title going back and forth—particularly in short matches—to justify a string of three or more high profile bouts between the two men. In a multi-match rivalry, WWE could lure over those elusive MMA fans, who only dabble in watching wrestling. The lure of these legitimate athletes waging war could also play well to the mainstream audience WWE now has access to via SmackDown on FOX.